<template>
  <a-spin :spinning="cardLoading">
    <x-card v-if="hasPerm('sysfileinfo:page')">
      <div slot="content" class="table-page-search-wrapper">
        <a-form layout="inline">
          <a-row :gutter="48">
              <a-col :md="8" :sm="24">
                <a-form-item label="文件名称">
                  <a-input v-model="queryParam.name" placeholder="请输入文件名称（上传时候的文件名）"/>
                </a-form-item>
              </a-col>
            <a-col :md="!advanced && 8 || 24" :sm="24">
              <span class="table-page-search-submitButtons">
                <a-button type="primary" @click="$refs.table.refresh(true)" >查询</a-button>
                <a-button style="margin-left: 8px" @click="() => queryParam = {}">重置</a-button>
              </span>
            </a-col>
          </a-row>
        </a-form>
      </div>
    </x-card>
    <a-card :bordered="false">
      <s-table
        ref="table"
        :columns="columns"
        :data="loadData"
        :alert="false"
        :rowKey="(record) => record.id"
        :rowSelection="{ selectedRowKeys: selectedRowKeys, onChange: onSelectChange }"
      >
      
      <template slot="operator" v-if="hasPerm('sysfileinfo:addfolder')">
          <a-button @click="addFolderInfo()" icon="plus" type="primary" v-if="hasPerm('sysfileinfo:addfolder')">新增文件夹</a-button>
        </template>
        <template slot="operator" v-if="hasPerm('sysfileinfo:upload')">
          <a-upload
            :customRequest="customRequest"
            :multiple="true"
            :showUploadList="false"
            name="file"
            v-if="hasPerm('sysfileinfo:upload')"
          >
            <a-button>  <a-icon type="upload" />上传文件</a-button>
          </a-upload>
           <!-- <p class="mt10">所在目录：
                <span class="folder_color_style" v-for="(item,index) in filePath" :key="index" @click="backToStep(item,index)">{{item.folderName}}</span>
            </p> -->
        </template>
        <template slot="operator">
          <p class="mt10">所在目录：
            <span class="folder_color_style" v-for="(item,index) in filePath" :key="index" @click="backToStep(item,index)">{{item.folderName}}</span>
          </p>
        </template>
        <span slot="fileOriginName" slot-scope="text, record">
           <span v-if="record.isFolder"  class="folder_color_style" @click="getFolderDetail(record)"><img v-if="record.isFolder" src="~@/assets/folder.png" class="folder_icon_style">  <ellipsis :length="40" tooltip>{{ text }}</ellipsis></span>
           <ellipsis  v-if="!record.isFolder" :length="40" tooltip>{{ text }}</ellipsis>
        </span>
        <!-- <span slot="filePath" slot-scope="text">
          <ellipsis :length="20" tooltip>{{ text }}</ellipsis>
        </span> -->
        <span slot="filesuffix" slot-scope="text">
          <a-tag v-if="text" color="blue">{{ text }}</a-tag>
        </span>
        <span slot="action" slot-scope="text, record">
          <a v-if="hasPerm('sysfileinfo:download') & !record.isFolder" @click="sysFileInfoDownload(record)">下载</a>
          <!-- <a-divider type="vertical" v-if="hasPerm('sysfileinfo:download') & hasPerm('sysfileinfo:detail')"/>
          <a v-if="hasPerm('sysfileinfo:detail')" @click="$refs.detailForm.detail(record)">详情</a> -->
          <a-divider type="vertical" v-if="hasPerm('sysfileinfo:delete')"/>
          <a-popconfirm v-if="hasPerm('sysfileinfo:delete')" placement="topRight" title="确认删除？" @confirm="() => sysFileInfoDelete(record)">
            <a>删除</a>
          </a-popconfirm>
          <a-divider type="vertical" v-if="(hasPerm('sysfileinfo:preview') & record.filesuffix === '.png' || record.filesuffix === '.jpeg' || record.filesuffix === '.jpg'|| record.filesuffix === '.gif'|| record.filesuffix === '.tif' || record.filesuffix === '.bmp' )"/>
          <a v-if="(hasPerm('sysfileinfo:preview') & record.filesuffix === '.png' || record.filesuffix === '.jpeg'|| record.filesuffix === '.jpg'|| record.filesuffix === '.gif'|| record.filesuffix === '.tif' || record.filesuffix === '.bmp' )" @click="$refs.previewForm.preview(record)">预览</a>
          <a-divider type="vertical" v-if="(hasPerm('sysfileinfo:preview') || record.filesuffix === '.pdf'  & record.filesuffix === '.doc' || record.filesuffix === '.docx'|| record.filesuffix === '.xls'|| record.filesuffix === '.xlsx')"/>
          <a v-if="(hasPerm('sysfileinfo:preview') & record.filesuffix === '.pdf' || record.filesuffix === '.doc' || record.filesuffix === '.docx'|| record.filesuffix === '.xls'|| record.filesuffix === '.xlsx')" @click="previewMicrosoft(record)">预览</a>
        </span>
      </s-table>
      <!-- <detail-form ref="detailForm" @ok="handleOk" v-if="hasPerm('sysfileinfo:detail')"/> -->
      <preview-form ref="previewForm" v-if="hasPerm('sysfileinfo:preview')"/>
      <addFolder-form ref="addFolderForm" @ok="handleOk"/>
    </a-card>
  </a-spin>
</template>
<script>
  import { STable, Ellipsis, XCard } from '@/components'
  import { sysFileInfoPage, sysFileInfoDelete, sysFileInfoUpload, sysFileInfoDownload } from '@/api/modular/system/fileManage'
  import detailForm from './detailForm'
  import previewForm from './previewForm'
  import addFolderForm from './addFolderForm'
  export default {
    components: {
      XCard,
      STable,
      Ellipsis,
      detailForm,
      previewForm,
      addFolderForm
    },
    data () {
      return {
        // 高级搜索 展开/关闭
        advanced: false,
        // 查询参数
        queryParam: {},
        // 表头
        columns: [
          {
            title: '文件名称',
            dataIndex: 'fileName',
            scopedSlots: { customRender: 'fileOriginName'}
          },
          {
            title: '文件后缀',
            dataIndex: 'filesuffix',
            scopedSlots: { customRender: 'filesuffix' }
          },
          {
            title: '文件大小',
            dataIndex: 'fileSize'
          }, 
          {
            title: '上传人',
            dataIndex: 'createdUserName'
          },
          {
            title: '上传时间',
            dataIndex: 'createdTime'
          },
          // {
          //   title: '存储位置',
          //   dataIndex: 'filePath',
          //   scopedSlots: { customRender: 'filePath' }
          // },


        ],
        // 加载数据方法 必须为 Promise 对象
        loadData: parameter => {
          this.queryParam.folderId = this.folderId;
          return sysFileInfoPage(Object.assign(parameter, this.queryParam)).then((res) => {
            return res.data
          })
        },
        cardLoading: false,
        fileLocationDictTypeDropDown: [],
        selectedRowKeys: [],
        selectedRows: [],
        folderId:'',
        filePath:[{
                  'folderId':'',
                  'folderName':'/最上级',
              }]
      }
    },
    created () {
      //  if (this.hasPerm('sysdicttype:edit')) {
        this.columns.push({
          title: '操作',
          width: '200px',
          dataIndex: 'action',
          scopedSlots: { customRender: 'action' }
        })
      //  }
    },
    methods: {
      /**
       * 预览文件（微软插件）
       */
      previewMicrosoft (record) {
        window.open('https://view.officeapps.live.com/op/view.aspx?src=' + process.env.VUE_APP_API_BASE_URL + '/sysFileInfo/OfficePreView?id=' + record.id)
      },
      /**
       * 下载文件（所有文件）
       */
      sysFileInfoDownload (record) {
        this.cardLoading = true
        sysFileInfoDownload({id: record.id}).then((res) => {
          this.cardLoading = false
          this.downloadfile(res)
        // eslint-disable-next-line handle-callback-err
        }).catch((err) => {
          this.cardLoading = false
          this.$message.error('下载错误：获取不到源文件，请联系管理员')
        })
      },
      downloadfile (res) {
        var blob = new Blob([res.data], { type: 'application/octet-stream;charset=UTF-8' })
        console.log(res)
        var contentDisposition = res.headers['content-disposition']
        var patt = new RegExp('filename*=([^;]+\\.[^\\.;]+);*')
        var result = patt.exec(contentDisposition)
        var filename = result[1]
        var downloadElement = document.createElement('a')
        var href = window.URL.createObjectURL(blob) // 创建下载的链接
        var reg = /^["](.*)["]$/g
        downloadElement.style.display = 'none'
        downloadElement.href = href
        console.log(contentDisposition)
        downloadElement.download =  decodeURI(filename.replace(reg, '$1')) // 下载后文件名
        document.body.appendChild(downloadElement)
        downloadElement.click() // 点击下载
        document.body.removeChild(downloadElement) // 下载完成移除元素
        window.URL.revokeObjectURL(href)
      },
      sysFileInfoDelete (record) {
        sysFileInfoDelete({id: record.id}).then((res) => {
          if (res.success) {
            this.$message.success('删除成功')
            this.$refs.table.refresh()
          } else {
            this.$message.error('删除失败：' + res.message)
          }
        }).catch((err) => {
          this.$message.error('删除错误：' + err.message)
        })
      },
      toggleAdvanced () {
        this.advanced = !this.advanced
      },
      /**
       * 上传文件
       */
      customRequest (data) {
        const formData = new FormData()
        formData.append('file', data.file)
        if(this.folderId){
           formData.append('folder', this.folderId)
        }
        sysFileInfoUpload(formData).then((res) => {
          if (res.success) {
            this.$message.success('上传成功')
            this.$refs.table.refresh()
          } else {
            this.$message.error('上传失败：' + res.message)
          }
        })
      },
      handleOk () {
        this.$refs.table.refresh()
      },
      onSelectChange (selectedRowKeys, selectedRows) {
        this.selectedRowKeys = selectedRowKeys
        this.selectedRows = selectedRows
      },
      getFolderDetail(record){
        this.folderId = record.id;
         this.filePath.push({
            'folderId':record.id,
            'folderName':'/' + record.fileName,
        });
        this.$refs.table.refresh()
      },
       backToStep(data,index){
          this.folderId = data.folderId;
          this.filePath.splice(index+1,this.filePath.length-1);
          this.$refs.table.refresh();
      },
      addFolderInfo(){
       this.$refs.addFolderForm.add(this.folderId);
      },
    }
  }
</script>
<style lang="less">
  .table-operator {
    margin-bottom: 18px;
  }
  button {
    margin-right: 8px;
  }
  .folder_icon_style{
    width: 16px;
    height: 16px;
    vertical-align:
     middle;
     margin-right: 4px;
  }
  .folder_color_style {
    color: #09c;
    text-decoration: underline;
    cursor: pointer;
}
</style>
